| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* Generated By:JJTree: Do not edit this line. AstNegative.java */ |
| |
| package org.apache.el.parser; |
| |
| import java.math.BigDecimal; |
| import java.math.BigInteger; |
| |
| import javax.el.ELException; |
| |
| import org.apache.el.lang.EvaluationContext; |
| |
| |
| /** |
| * @author Jacob Hookom [jacob@hookom.net] |
| */ |
| public final class AstNegative extends SimpleNode { |
| public AstNegative(int id) { |
| super(id); |
| } |
| |
| @Override |
| public Class<?> getType(EvaluationContext ctx) |
| throws ELException { |
| return Number.class; |
| } |
| |
| @Override |
| public Object getValue(EvaluationContext ctx) |
| throws ELException { |
| Object obj = this.children[0].getValue(ctx); |
| |
| if (obj == null) { |
| return Long.valueOf(0); |
| } |
| if (obj instanceof BigDecimal) { |
| return ((BigDecimal) obj).negate(); |
| } |
| if (obj instanceof BigInteger) { |
| return ((BigInteger) obj).negate(); |
| } |
| if (obj instanceof String) { |
| if (isStringFloat((String) obj)) { |
| return Double.valueOf(-Double.parseDouble((String) obj)); |
| } |
| return Long.valueOf(-Long.parseLong((String) obj)); |
| } |
| if (obj instanceof Long) { |
| return Long.valueOf(-((Long) obj).longValue()); |
| } |
| if (obj instanceof Double) { |
| return Double.valueOf(-((Double) obj).doubleValue()); |
| } |
| if (obj instanceof Integer) { |
| return Integer.valueOf(-((Integer) obj).intValue()); |
| } |
| if (obj instanceof Float) { |
| return Float.valueOf(-((Float) obj).floatValue()); |
| } |
| if (obj instanceof Short) { |
| return Short.valueOf((short) -((Short) obj).shortValue()); |
| } |
| if (obj instanceof Byte) { |
| return Byte.valueOf((byte) -((Byte) obj).byteValue()); |
| } |
| Long num = (Long) coerceToNumber(ctx, obj, Long.class); |
| return Long.valueOf(-num.longValue()); |
| } |
| } |